Water-meter.



J. P. KELLY.

WATER METER.

APPLICATION FILED 1,110.18, 1909 96 9,286, Patented Sept. 6, 1910.

r if 73 L I j 35 JOHN P. KELLY, OF SPRINGFIELD, MASSACHUSETTS.

WATER-METER.

Application filed December 18, 1909.

Specification of Letters Patent.

Patented Sept. 6, 1910.

Serial No. 533,885.

To all whom it may concern:

Be it known that I, Jot-IN P. KELLY, a citizen of the United States,residing at Springfield, in the county of I-Iampden and State ofMassachusetts, have invented a new and useful ater-Meter, of which thefollowing is a specification.

In the drawings herewith accompanying and forming a part of thisapplication, Figure 1 is a vertical sectional view partly in elevationof my improved watenmeter: Fig. 2is an elevation of the disk chambershowing the inlet port and vertical diaphragm: and Fig. 3 is a plan Viewof the glass over the registering mechanism.

The same reference characters indicate like parts in the several views.

The outer casing is divided horizontally into two sections 1 and 2 whichare adapted to be held against vertical displacement by bolts 3 passingthrough ears 4 on the outside thereof. The under side of the uppersection 1 is machined to receive the circular intermediate gear frame 5,as seen at 6, said gear frame extending down slightly into a recess 7machined in the lower section, whereby, when the sections 1 and 2 are inposition, they are positively locked against lateral movement onerelative to the other without other locking means. The bottom of thelower section 2 and the bottom of the disk chamber are correspondinglymachined to fit together, as seen at 9, so that when the disk chamber isin place, it is held thereby against lateral displacement. The outercasing is provided with inlet and outlet ports 10 and 11 respectively,said outlet port being positioned preferably at the very bottom of theouter casing. The disk chamber is of the usual disk meter type modifiedas hereinafter described. It consists of a circular vertical ring 12,upper head 13 and lower head 14, the heads and ring being machined tointerlock, as seen at 15. Mounted in the disk chamber is a gyratory disk16 and a diaphragm 17 said disk and diaphragm being of the same generaltype and construction as shown in my former patent hereinaftermentioned. On one side of said diaphragm in the ring of the chamber isan inlet port 18 and on the other side in the lower head 14 of thechamber is an outlet port 19. It will be noted that water passingthrough the meter enters the disk chamber through the inlet port 18 andout thereof through the outletport 19, the passage of the water throughthe disk chamber imparting a gyratory motion to the disk. It willfurther be noted that the port in the lower head. of the disk chamber iswithin the area of the disk.

The lower head is easily positioned relative to the ports in the ringand head by means of a pin or stud 20 on one part adapted to take into acorresponding hole 21 in the other member, the upper head is then easilypositioned by means of the diaphragm 17 the two heads being providedwith registering recesses adapted to receive it. The disk chamber isheld yieldingly against vertical displacement relative to the outercasing by means of springs 22 interposed between the top thereof and theintermediate gear frame and these springs are maintained in properposition by means of studs 10 around which the springs are coiled. Itwill be noted that the disk chamber is thus held in position withoutscrews or bolts and may be removed without tools as'soon as the uppersection of the outer casing is removed. This construction also preventsdamage to the disk or disk chamber in case the water freezes.

In disk meters as heretofore constructed, the disk and disk chamber makea tight joint throughout its entire extent. It sometimes happens whenthe disk is thus constructed, where the outlet is in the side of thechamber or in the bottom outside the area of the disk that the disk getsinto a position that closes the port on one side of the disk and apressure of water on the other side breaks the disk. To obviate thisdanger I cut away a portion of the disk as seen at 23 making a portthrough which the water passes to the outlet port 19 in the bottom headwhich is located within the disk area.

The intermediate gear mechanism 24,00111- prising the gearing shown inthe upper part of the outer casing, is driven by the gyra-tory movementof the disk in the manner usual in this class of meters, the same beingsubstantially as shown and described in my former Patent No. 749066,dated January 5, 1904, the gears, however, being free to move verticallyon their posts so that in case of freezing the gear frame will not bedistorted as it would be if the gears were held rigidly. The registermechanism is contained in a housing 25. The top of the outer casing ismachined so that the housing 25 fits tightly down over the top ofsection 1 or upon a water tight packing 26, whereby the housing is heldabsolutely in a central position and against lateral movement. It issecured against vertical movement in any convenient manner as by screws27. Secured to the top of the outer casing is a stufiing box 28 throughwhich passes a stem 29 operable by the-disk spindle :'through theintermediate gear mechanism, "and driven by said stem mounted in saidhousing is a register mechanism of any suitable construction in dicatedas a whole by reference character 30. The housing is provided with aremovable cover 31 and with a glass 32 positioned below said cover whichprotects the register mechanism but affords a clear view thereof. 1 haveprovided a novel arrangement for removably supporting said glass in thehousing. The housing is provided with an internal flange 33 at the topand with one or more internal projections 34 spaced apart below saidflange a distance substantially equal to the thickness of the glass. Theglass consists of a circular disk provided with. one or more reentrantrecesses 85. To insert the glass in position it is introduced throughthe bottom of the housing and turned until said reentrant recessesregister with said projections 84 which enables the glass to be movedupwardly until it bears against the flange 33 or against a packing Sf-tpmake it water tight. Then a slight turning of the glass carries therecesses beyond the projections which then serve to support the glass.The register housing is thus made water tight which is very importantwhen the meter is set in the ground.

In the bottom of the outer casing is a drainage valve 8 positioned sothat the outer casing and the outlet port can be entirely drained.

The advantages of my improved water meter are that it is cheaply andsimply constructed, obviates liability to damage due to unequal pressureand to freezing of the" water therein, obviates the use of screws andbolts mside the outer casing and provides for complete drainage of theouter casing and outlet port.

l-Iaving thus described my invention and its use, I claim 1. I11 a diskwater meter, an outer casing comprising two sections, an intermediategear frame positioned in said casing, a disk chamber mounted in saidcasing and springs interposed between said disk chamber and saidintermediate gear frame, whereby the disk chan'iber is held yieldinglyin place.

2. In a disk water meter, an outer casing comprising two members, anintermediate gear frame positioned intermediate the top and bottomthereof, a disk chamber in said casing positioned below said gear frame,said disk chamber comprising a ring and top and bottom heads looselyjoined together, and sprii'igs interposed between said gear frame andthe top head of said disk chamber.

3. In a disk water meter, a disk chamber comprising a ring provided withan inlet port, a top head and a bottom head provided with an outletport, a vertical diaphragm, a gyratory disk provided with a port, saidoutlet port and said port in the disk being positioned on the same sideof said dia phragm.

4.. In a disk water meter, an outer casing comprising upper and lowersections, an intermediate gear frame interposed between the two, thelower section being machined to receive and support said frame and theupper section being machined to fitover and confine said frame, wherebysaid frame and said upper section are held in central position relativeto said lower section.

5. In a disk water meter, an outer casing, an intermediate gear framemounted in said casing, a register mechanism and intermediate gearmechanism connected therewith comprising posts set on the top of saidframe and gears mounted upon said posts and free to move verticallyrelative to each other, whereby bending of the frame and strain on theregister mechanism is obviated.

JOHN P. KELLY.

Witnesses:

EDMUND P. Knivniuon, JOHN L. RICE.

